Homojunction
同類結, 單質結
??? 情景例句
We've known each other since we were children.
我們從小就認識。
The heart of the giver makes the gift dear and precious.
贈予者的心意可使饋贈的東西增加價值而顯得珍貴。
(A light year is the distance which light travels at 186,000 miles per second in one year,
一光年是光以每秒186，000英里的速度在一年內走的距離，